Attenuation material composition, attenuation material and preparation method and use thereof

1. An attenuation material composition comprising a room temperature vulcanized silicone rubber, an epoxy resin, a first curing agent and a second curing agent, wherein the first curing agent comprises ethyl orthosilicate and dibutyltin oxide; the weight ratio of the room temperature vulcanized silicone rubber to the epoxy resin is (0.1-1):1; and the weight ratio of the ethyl orthosilicate to the dibutyltin oxide is 100:(2-4).

2. The composition of claim 1 , wherein the weight ratio of the ethyl orthosilicate to the dibutyltin oxide is 100:(2.5-3.5).

3. The composition of claim 1 , wherein the weight ratio of the room temperature vulcanized silicone rubber to the first curing agent is 100:(2-4).

4. The composition of claim 3 , wherein the weight ratio of the room temperature vulcanized silicone rubber to the first curing agent is 100:(2.5-3.5).

5. The composition of claim 1 , wherein the room temperature vulcanized silicone rubber is 10-100 parts by weight, the first curing agent is 0.3-3 parts by weight, and the second curing agent is 10-30 parts by weight, based on 100 parts by weight of the epoxy resin.

6. The composition of claim 5 , wherein the room temperature vulcanized silicone rubber is 45-55 parts by weight, the first curing agent is 1-2 parts by weight, and the second curing agent is 15-25 parts by weight, based on 100 parts by weight of the epoxy resin.

7. The composition of claim 1 , wherein the second curing agent is an aliphatic amine curing agent.

8. The composition of claim 7 , wherein the aliphatic amine curing agent has a viscosity within a range of 50-120 mPa·s at a temperature of 25° C. and an amine value within a range of 600-700 mgKOH/g.

9. The composition of claim 1 , wherein the room temperature vulcanized silicone rubber has a viscosity within a range of 2,000-12,000 mPa·s at a temperature of 25° C.

10. The composition of claim 1 , wherein the epoxy resin has a viscosity within a range of 9,000-14,000 mPa·s at a temperature of 25° C. and an epoxy value within a range of 0.5-0.54 mol/100 g.

11. A method for preparing an attenuation material with the attenuation material composition of claim 1 , including: (1) subjecting the room temperature vulcanized silicone rubber to a first heat treatment and then subjecting to a first mixing with the first curing agent to obtain a modified silicone rubber; (2) subjecting the epoxy resin to a second heat treatment and then subjecting to a second mixing with the second curing agent and the modified silicone rubber; (3) injecting the mixture obtained in step (2) into a mould and performing a curing process.

12. The method of claim 11 , wherein the first heat treatment in step (1) is performed by means of constant temperature heating, and the heating is kept at a temperature of 20-50° C. for 1-48 hours.

13. The method of claim 11 , wherein the conditions of the first mixing in step (1) comprise: the stirring velocity is within a range of 70-95 rpm, and the stirring time is within a range of 6-12 min.

14. The method of claim 13 , wherein the stirring velocity is within a range of 80-90 rpm, and the stirring time is within a range of 8-10 min.

15. The method of claim 11 , wherein the second heat treatment in step (2) is performed by means of constant temperature heating, and the heating is kept at a temperature of 20-50° C. for 1-48 hours.

16. The method of claim 11 , wherein the conditions of the second mixing in step (2) comprise: the stirring velocity is within a range of 70-95 rpm, and the stirring time is within a range of 6-12 min.

17. The method of claim 11 , wherein the conditions of the curing treatment in step (3) comprise: the temperature is within a range of 18-32° C., and the time is within a range of 24-96 hours.

18. An attenuation material prepared with the method of the claim 11 .

19. A seismic physical model comprised of the attenuation material of claim 18 .